short



2 Sheets-Sheet 1.

(No Model.)

s. H. SHORT. BLBOTRIOALLY PROPBLLED GAR.

Patented ay 12, 1891.

V. In:

\S W N (N0 1 691. l 1 2 Sheets-Sheet 2.

- H. SHORT.

ELBQTRIGALL'Y PROPBLLBD CAR.

No. 451,980. Patented May 12', 1891..

as cm, PHOTO-H1110, msumoron, n, c.

UNITED STATES PATENT OFFICE.

SIDNEY H. SHORT, OF CLEVELAND, OHIO, ASSIGNOR TO THE SHORT ELECTRIC RAILXVAY COMPANY, OF SAME PLACE.

ELECTRICALLY-PROPELLED CAR.

SPECIFICATION forming part of Letters Patent No. 451,980, dated May 12, 1891.

Application filed November 6, 1890. Serial N- 370,533- (No model.)

T0 l w7b0m it m y wlwern: the driving-axle, so that it revolves there- Be it known that I, SIDNEY H. SHORT, of with and thus does not require any special Cleveland, in the county of Ouyahoga and journals. State of Ohio, have invented certain new and By means of the present invention, there- 5 useful Improvements in Electrically Profore, it will be perceived that the connection pelled Cars or Vehicles; and I do hereby deof the motor with r the car may be made of clare the following to be a full, clear, and exact the simplest possible description, hardly any description of the invention, such as will enamechanism being required outside of motor ble others skilled in the art to which it apperand the car itself. It will also be under- 6c I0 tains to make and use the same. stood, however, that the invention extends This invention relates to cars or wheeled generally to constructions involving one or Vehicles which are Propelled y one more more of, the features or combination of feaelectric motors and in which the armatures tures indicated, notwithstanding some furof said motors are axially mounted on the ther mechanism may be employed in such 15 driving-axles and are directly secured thereconstructions.

to. By axially mountedis to be understood The invention may be employed with mothat the axes of the motor-armatures and 0f tors having two poles; but-the multipolar mathe corresponding driving-axles are coincichine is specially adapted to use therein on dent, or nearly so, with each other. Bymountaccount of the greater pull upon the arma- 7o :0 ing the armatures on and directly securing the ture, which it is possible to obtain thereby. same to the driving-axles the tWO Will at all lVhat is considered the best arrangement of times turn together with equal speed, thus motor comprises field magnets projecting avoiding the necessity of reducing gear. from yokes on opposite sides of the armature In accordance with the present invention parallel with the driving-axle, the yokes hav- 25 field-magnets mounted on springs or buffers ing openings therein for the passage of the independently of the armature are employed driving-axle with the desired clearance and OOIlIleOiJiOll With all it y-mounted and being connected with each other by one or directly-connectedarmature. 'Preferablythe more arms. Y field-magnets are arranged at the sides of the A furtherpart of the invention consists in 3o armature, so that their movement in vertical employing commutator-brushes mounted on planes effects less variation in the interior a non-rotative support on the armature-shaft space of the motor. It is evident that difierin connection with the field-magnets mounted ent modifications of this general arrangeon springs or buffers independently of the ment may be made; but what is considered armature. Such support is preferably con- 3 5 the best form involves also the following speuectecl with the field-magnets or the fieldcial featuresthat is to say: First, the fieldmagnet frame in such a way that it is held magnet support is upheld by the ordinary in position thereby while not interfering with journal-boxes, so that no special journals are the movements thereof on the springs or necessary for said support; second, the fieldbuffers.

4o magnet support is upheld by the same springs The term non-rotative as applied to the which uphold the car-body, so that the effect commutator-brushes will be understood as of said springs of easing the jolting is obnot excluding more or less turning back and tained for the field-magnets; third, the fieldforth for adjustment or other purposes. magnets are fastened under the car-floor, so In the accompanying drawings, which form 45 that not only are the ordinary journals and a part of this specification, Figure l is a par springs made available for the field-magnets, tial view in vertical longitudinal section of but little or no special framing even is rean electrically-propellcdcar constructedinacquired therefor; fourth, in connection with cordance with the invention, and Fig. 2 is a field-magnets supported, as indicated above, partial view of the same'in transverse sec- 50 in one or more of the preceding sections, an tion.

armature is employed which is mounted on The armature A of the propellingmotor is shown as mounted fast (by means of a key, for example) on the driving-axle B, whose ends outside the wheels 0 turn in journalboxes D in pedestals fastened to the 'carbody E, which rests on springs F, all in the ordinary way. Any known or suitable arrangement may be adopted. The armature A is thus not only mounted axially with reference to the driving-axle B,but it is mounted thereon, no journal-bearings being necessary for the armature.

The fieldmagnets G, as shown, project from the yokes H and K at the sides of the armature parallel with the driving-axle B. These yokes are provided with openin s 2 for the passage of the driving-axle B, and are connected'by the arm L which is bolted to the floor-beams of the car. Thus the fieldmagnets are supported by the ordinary journals and the ordinary springs of the car, and are capable of moving on the said springs independently of the armature. The field-magnets shown comprise four poles; but the like arrangement of magnets projecting from the yokes which are provided with openings for the passage of the driving-axle may be used with atwo-pole machine.

The commutator M is mounted on the driving-axle B, and the commutator-brushes N and P are mounted on a support Q, journaled on said axle and held from rotation by means of the connection R with the field-magnets G. The connection shown consists of an arm which plays freely through a longitudinal slot in a wrist-pin R on the bracket S, fastened to yoke H. v

The coils of the field-magnet and armature may be connected in any desired way and may be supplied with electricity from any suitable source on or outside the car. Instead of having the field-magnets non-rotative, it is evident thatthese-might rotate and the armature be held from rotation by a mounting on the car-body, as herein indicated for the fieldmagnets, these being mon nted fast on the driving-axle B. In the preceding description the fieldmagnets have been described as upheld by the ordinaryjournals of the car in connection with a spring-mounting for such field-magnets. It is evident, however, that the advantage of not having to provide special journals for the field-magnets is not necessarily dependent upon the spring-mounting; and the invention extends to a car-motor in which the field-magnets are upheld by the ordinary journals irrespective of the spring-mounting of said magnets, as well as in connection with such mounting. Moreover, the brush-support on the commutator-shaft is included generally in connection withfield-magnets not perfectly rigid.

Having fully described my invention, What I claim as new, and desire to secure by Let ters Patent, is-

1. The combination, with a car, of an electric propelling-motor comprising an armature mounted on and directly secured to acaraxle; and non-rotative field-magnets mounted on springs independently of the said armature, substantially as described.

2. The combination, with a car, of an electriepropelling-motor comprising an armature mounted on and directly secured to a caraxle, and non-rotative field-magnets mounted on springs independently of the said armature at the sides of the same, substantially as described.

3. The combination, with a car, of an electric propelling-motor comprising an armature mounted on and directly secured to the caraxle, and non-rotative field-magnets upheld by the journals of the axle, with springs 1nterposed between these journals and the fieldmagnet support, substantially as described.

et: The combination, with a car, of an electric propelling-motor comprising an armature mounted on a driving-axle to turn therewith, and non-rotative elasticallymounted fieldmagnets upheld by the journals of the axle, substantially as described.

5. The combination, with a car,ot an electric propelling-motor comprising an armature mounted on and directly secured to a caraxle, and non-rotative field-magnets upheld by the ordinary journals of the axle and mounted on springs independently of the said armature, substantially as described.

6. The combination, with a car, of an electric propelling-motor comprising an armature mounted on a driving-axle to turn therewith, and non-rotative field-magnets mounted on springs independently of the said armature, substantially as described.

7. The combinat.ion,with a car, of an electric propellinganotor comprising an armature axially mounted on and directly connected with the driving-axle, and non-rotative fieldmagnets mounted on the ordinary car-springs ind ependently of the said armature, substantially as described.

8. The combination, with a car, of an electric propelling-motor comprising an armature mounted on a driving-axle to turn therewith, and non-rotative field-magnets mounted on ordinary car-springs independently of the said armature, substantially as described.

9. The combination, with a car, of an electric propelling-motor comprising an armature axially mountedon and directly secured to a car-axle, and field-magnets fastened to the spring-supported car-body under the car-floor, substantially as described.

10. The combination, with a car, of an elec tric propelling-motor comprising an armature mounted on a driving-axle to turn therewith, and non-rotative field-magnets fastened to the spring-supported car-body under the carfloor, substantially as described.

11. The combination, with a car, of an elec* tric propelling-motor comprising an armature axially mounted on and directly secured to a car-axle, and field-magnets projecting from yokes withopenings therein for the passage of the driving-axle or armature-shaft with IIO clearance and mounted independently of the said armature, substantially as described.

12. The combination, with a car, of an electric propelling-motor comprising an armature mounted on a driving-axle to turn therewith, and non-rotative field-magnets projecting from yokes with openings therein for the passage of the said axle with clearance and upheld by the ordinary journals of the car, substantially as described.

13. The combination, with a car, of an electric propelling-motor comprising an armature mounted on a driving-axle to turn therewith, and non-rotative field-magnets projecting from yokes with openings therein for the passage of the said axle with clearance and fastened to the car-body or mounted by means of springs and journal-boxes which support said body, substantially as described.

let. The combination, with the armature and commutator and the field-magnets mounted and movable independently of the said armature, of commutator-brushes provided with a non-rotative support having a fixed relation to the said armature, substantially as described.

15. The combination, with a car, of an electric propelling-motor comprising an armature axially mounted upon and directly secured to a car -axle, non-rotative fieldmagnets mounted on springs independently of said armature, and non rotative commutatorbrushes having a fixed relation to the commutator, substantially as described.

16. The combination, with a car, of an armature mounted on a driving-axle to turn therewith, a commutator on said axle, a non-rotative support for the comm utator-brushes on said axle, and the non-rotative field-magnets elastically mounted independently of said armature, substantially as described.

17. The combination, with a car, of an armature mounted on a driving-axle to turn therewith, a commutator on said axle, a non-rotative support for the commutatonbrushes on said axle, non-rotative field-magn ets fastened to the car-body, and springs and journalboxes which support said car-body, substantially as described. I

18. The combination, with a car, of an armature mounted on a driving-axle, a commutator on said axle, a brush-support journaled on said axle, non-rotative field-magnets movable independently of said armature transversely to the armature-axis, and aconnectionbetween said brush-support and said field-magnets to prevent the rotation of the brush-support, substantially as described.

19. The combination, with a car, of an electric propelling-motor comprising an armature axially mounted upon and directly secured to a car-axle, and nou-rotative multipolar field-magnets mounted to have movement independently of said armature at the sides of the same, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

SIDNEY H. SHORT.

Witnesses:

A. B. CALHOUN, O. J. LEEPHART. 

